Filter



Patented May 31, 1927.

Uirsn STATES SAMUEL s. AMDURsKY, or ROCHESTER, NEW YORK, AssrGivoR To TAYLOR INSTRU` MENT COMPANIES, OF ROCHESTER, NEW YORK, .A CORPORATION OF NEW YORK.

FILTER.

Application lcd September 25, 1924. Serial No. 739,948.

This invention relates to filters, and more' placement of the filtering material in the latter, together with various other features.

affording an efficient and paratus. y

To these and other ends the invention resides in certain improvements and `combinations of. parts, all as will be hereinafter niore convenient apfully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings Fig. 1 is a sectional view through a filtering device embodying the present invention.

Fig.-2 is a top plan View of the same.

Fig. 3 is a view similar to Figure 2 with the container closure removed, and

Fig. 4 is a side elevation showing the container closure reversed and cooperating with the cartridge for unscrewing the same from the container.

Similar reference numerals throughout the several views indicate the same parts.

This invention, in the preferred embodiment herein disclosed by way of illustration,

comprises a container 5 of the generally cy lindrical form shown with an open top internally threaded as at 6. At the inner end of threaded portion 6 is a shoulder 7 in the vpresent instance in the form of an annular ange providing a seat'for the cartridge as lieieafter described. The container formed on opposite sides adjacent its top with outwardly projecting bosses 8 and 9 in which are threaded openings 10 and 11 for 'the reception of inlet and outlet connections,

respectively. Inlet 1() is connected by a passageway 12 in boss 8 with the interior of casing 5 below shoulder 7, while outlet opening 11 is connected by a passageway 13 with the container interior above shoulder 7 so that the fluid entering the container through passageway 12 is "directed through the cartridge carried on shoulder 7 and discharged through passageway 13.

, The filtering cartridge comprises preferably a cylindrical' sleeve 14 provided with threaded means adjacent one end for engagement in the threaded open end 6 of the container'to secure the cartridge on its seat in the latter in spaced relation with its walls as shown. In the present instance the upper end of sleeve 14 is formed with an outwardly projecting flange l5, the periphery of which `is Vthreaded for engagement with the container, the flange resting on a suitable gasket 16 on shoulder or seat 7 when the cartridge is screwedhoine as shown. It is apparent from this construction that the cartridge is securely supported in the container when in J ufe and that it may be readily detached from the container by unsci'ewingr it through the open container top.

The filtering cartridge is not only detachable as described but also preferably com prises detachable end portions for the pui'- pose of readily inserting and replacing the filtering material. In the present'instance this result is accomplished by spinning the lower end of the cartridge sleeve inwardly as at 17 to form a seat for a foraminous disk orend portion 18 on which the filtering material 19 is supported. The upper end` of the cartridge sleeve is closed by a similar end-portion 20 having upturned lugs-21 serving. as handles for removing the same from the cartridge. done, the other end 18 may bereadily pushed 'out through the top of the cartridge to carry with it the filtering material which may then be readily replaced together with the end portions in an obvious manner.

The open top of the container carries a closure which is advantageously ed to serve also as a means for unscrewing the cartridge from the container. The closure is shown at 22 as seated on a `gasket 23 on the rim of the container top with a projecting threaded plug 24 screwed into the ing the same'r to unscrew the cartridge and screw the same home against the seat in the container. The lower end of the latter is When this has been const'ruct- As indicated in Figure 4, the clo- Vsimple and practical apparatus affording a combination and arrangement of parts by means of which the filtering cartridge may be quickly and conveniently removed and itself disassembled for the removal and replacement of the litering material, with no other tool than an ordinary Wrench for turning the container closure. In addition to such accessibility, the parts are adapted for l manufacturing lproduction and assembly at a' comparatively low cost.

i I claim as my' invention: l

1.In a device of the class described, the combination of a container having an internally threaded open end and lateral inlet and outlet passages, a filtering cartridge having threaded means for detachably supporting the samein said container end between said passages, a closure for said container end, and means on said closure for unscreWing said threaded means and detach'- ingsaid cartridge.

2. In a device of the class described, the combination of a container having an internally threaded open end and inlet and out/let passages, a filtering cartridge having threaded means for detachably supporting the same in said container end between said passages, ya vclosure threadedly engaged in said container end and providedon opposite sides With means for turning the same, and means on said closure for unscrewing said threaded cartridge means and detachi-ng said cartridge.

3. In a device-of the class described, the combination of a container having an internally threaded open end and inlet and outy let passages, a filtering cartridge comprising a sleeve threadedly supported in said container end and .having detachable foraminous ends', a closure threadedly engaged in said container 4end and provided on opposite sides with means for turning the same, and cooperating means on said ycartridge and the outer side of said closure for unscrewing said cartridge for removal from the container.

.space and the said opening, respectively.

SAMUEL S. AMDURSKY. 

